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Finding the Fourth Proportional to 54,402.30, 81,603.45 and 31,031.10

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Solution

The fourth proportional to 54,402.30, 81,603.45 and 31,031.10 is: 46,546.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,402.30 : 81,603.45 = 31,031.10 : x
  2. Step 2: Convert to fraction form
    54,402.30/81,603.45 = 31,031.10/x
  3. Step 3: Cross multiply
    54,402.30x = 81,603.45 × 31,031.10
  4. Step 4: Simplify right side
    54,402.30x = 2,532,244,817.30
  5. Step 5: Solve for x
    x = 2,532,244,817.30/54,402.30
  6. Step 6: Final answer
    x = 46,546.65

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